feat: Phase 1 — extract the client (web SPA + desktop) to dtoro/oikos-web

Problem: the hexagonal refactor churns the backend tree for nine more
phases; the UI delivery stack (web/ SPA, cmd/desktop Wails wrapper,
compose/web image) must move to its own repo first so doc/layout
rewrites land once on a backend-only tree.

Change:
- New repo git.hubris.network/dtoro/oikos-web (v0.33.0): web/, desktop/
  (updateURL repointed to oikos-web releases), compose/, own CI (web +
  desktop jobs), own deploy script (CI-green gate, TOCTOU guard,
  version-tagged images, prune-to-3), own webhook receiver on :9798 +
  launchd unit, own compose project publishing the same 8091:80.
- Cutover executed on mac-mini in order: oikos stack's web service
  stopped+removed, oikos-web project brought up on 8091; outer Caddy
  untouched (targets the published port) — serving + Authentik flow +
  /wails 404 quirk verified post-cutover.
- Stripped from oikos: web/, cmd/desktop/, compose/web/, desktop CI
  workflow, ci.yml web job, Makefile ui/desktop/desktop-package/install
  targets, the compose web service, oikos-web from deploy.sh's fallback
  prune list; wails + go-keyring dropped from go.mod, vendor synced.
- README / CONTRIBUTING / AGENTS.md / .agents dev+operations docs now
  point at the new repo; mbse + mascot design docs carry a path note.

Risk: production SPA serving depends on the new pipeline now; rollback
is versioned-image re-up of the old web service from a pre-split
checkout (port 8091). Desktop builds installed before the split still
check dtoro/oikos releases — one manual reinstall, noted in the
oikos-web release notes.

Verification: go vet, make test (race), make generate-check, golangci
(no new findings; baseline down 400→365); post-cutover curls —
localhost:8091 200, /wails/runtime.js 404, outer Caddy 302 Authentik.

web/node_modules/eslint/lib/rules/prefer-rest-params.js

@@ -0,0 +1,117 @@
+/**
+ * @fileoverview Rule to
+ * @author Toru Nagashima
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Gets the variable object of `arguments` which is defined implicitly.
+ * @param {eslint-scope.Scope} scope A scope to get.
+ * @returns {eslint-scope.Variable} The found variable object.
+ */
+function getVariableOfArguments(scope) {
+	const variables = scope.variables;
+
+	for (let i = 0; i < variables.length; ++i) {
+		const variable = variables[i];
+
+		if (variable.name === "arguments") {
+			/*
+			 * If there was a parameter which is named "arguments", the implicit "arguments" is not defined.
+			 * So does fast return with null.
+			 */
+			return variable.identifiers.length === 0 ? variable : null;
+		}
+	}
+
+	/* c8 ignore next */
+	return null;
+}
+
+/**
+ * Checks if the given reference is not normal member access.
+ *
+ * - arguments         .... true    // not member access
+ * - arguments[i]      .... true    // computed member access
+ * - arguments[0]      .... true    // computed member access
+ * - arguments.length  .... false   // normal member access
+ * @param {eslint-scope.Reference} reference The reference to check.
+ * @returns {boolean} `true` if the reference is not normal member access.
+ */
+function isNotNormalMemberAccess(reference) {
+	const id = reference.identifier;
+	const parent = id.parent;
+
+	return !(
+		parent.type === "MemberExpression" &&
+		parent.object === id &&
+		!parent.computed
+	);
+}
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "suggestion",
+
+		docs: {
+			description: "Require rest parameters instead of `arguments`",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/prefer-rest-params",
+		},
+
+		schema: [],
+
+		messages: {
+			preferRestParams: "Use the rest parameters instead of 'arguments'.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+
+		/**
+		 * Reports a given reference.
+		 * @param {eslint-scope.Reference} reference A reference to report.
+		 * @returns {void}
+		 */
+		function report(reference) {
+			context.report({
+				node: reference.identifier,
+				loc: reference.identifier.loc,
+				messageId: "preferRestParams",
+			});
+		}
+
+		/**
+		 * Reports references of the implicit `arguments` variable if exist.
+		 * @param {ASTNode} node The node representing the function.
+		 * @returns {void}
+		 */
+		function checkForArguments(node) {
+			const argumentsVar = getVariableOfArguments(
+				sourceCode.getScope(node),
+			);
+
+			if (argumentsVar) {
+				argumentsVar.references
+					.filter(isNotNormalMemberAccess)
+					.forEach(report);
+			}
+		}
+
+		return {
+			"FunctionDeclaration:exit": checkForArguments,
+			"FunctionExpression:exit": checkForArguments,
+		};
+	},
+};